Internet #100051755

Model # 21008051

Store SKU #182262

Store SO SKU #198092

0025417009149

Kidde

Battery Operated Smoke Detector with Ionization Sensor

  • Battery-operated smoke alarm; no hardwiring required
  • Change 9V batteries every 6 months to avoid low battery chirp
  • Test the alarm each month to ensure power source is working
$ 4 98
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Product Overview

Homedepot Image
  • Battery-operated smoke alarm; no hardwiring required
  • Change 9V batteries every 6 months to avoid low battery chirp
  • Test the alarm each month to ensure power source is working
The Kidde i9040 Battery-Operated Ionization Smoke Alarm is a single-station alarm with an early warning signal. This alarm utilizes ionization sensing technology to activate in the event of a smoke or fire incident and its compact, 4 in. design lends it a discreet profile in your home or business. Powered by a 9-Volt battery, this smoke alarm will protect you, your family and home during a power outage. When the battery begins to lose power, a low-battery alert will begin to chirp to notify you it is time to replace.Shop all Kidde Smoke Detectors here.
  • Utilizes ionization sensor
  • Provides an early warning signal in the event of a smoke
  • Compact 4 in. design
  • Low-battery indicator chirps to alert you to change the battery
  • Test button tests the unit's electronic circuitry, horn and battery function
  • Battery power means protection during power outages
  • 9-Volt battery included use Kidde power supply (205976052)
  • Compatible with Kidde, FireX, Code One, and Sentinel products



  • *Check with your state and local fire and Building/Safety codes for specific information regarding smoke & Carbon Monoxide Alarms.
  • Smoke detector utilizes an ionization sensor to detect fire hazards and sounds an 85 db alarm when a hazard is detected
  • UL/CSFM Ref. Kidde Part I9040
  • Click here for more information on Electronic Recycling Programs

Product Overview

  • Battery-operated smoke alarm; no hardwiring required
  • Change 9V batteries every 6 months to avoid low battery chirp
  • Test the alarm each month to ensure power source is working
Model #: 21008051
Sku #: 182262
Internet #: 100051755

The Kidde i9040 Battery-Operated Ionization Smoke Alarm is a single-station alarm with an early warning signal. This alarm utilizes ionization sensing technology to activate in the event of a smoke or fire incident and its compact, 4 in. design lends it a discreet profile in your home or business. Powered by a 9-Volt battery, this smoke alarm will protect you, your family and home during a power outage. When the battery begins to lose power, a low-battery alert will begin to chirp to notify you it is time to replace.Shop all Kidde Smoke Detectors here.

  • Utilizes ionization sensor
  • Provides an early warning signal in the event of a smoke
  • Compact 4 in. design
  • Low-battery indicator chirps to alert you to change the battery
  • Test button tests the unit's electronic circuitry, horn and battery function
  • Battery power means protection during power outages
  • 9-Volt battery included use Kidde power supply (205976052)
  • Compatible with Kidde, FireX, Code One, and Sentinel products



  • *Check with your state and local fire and Building/Safety codes for specific information regarding smoke & Carbon Monoxide Alarms.
  • Smoke detector utilizes an ionization sensor to detect fire hazards and sounds an 85 db alarm when a hazard is detected
  • UL/CSFM Ref. Kidde Part I9040
  • Click here for more information on Electronic Recycling Programs

Info & Guides

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Compare Similar

Compare Similar Products
Brand Kidde FireX Kidde Kidde
Name Battery Operated Smoke Detector with Ionization Sensor Hardwire Smoke Detector with 9V Battery Backup, Adapters, and Photoelectric Sensor 10-Year Sealed Battery Smoke Detector with Photoelectric Sensor Worry Free 10-Year Sealed Battery Smoke Detector with Voice Alarm
Price
$4.27
$17.97
$24.97
$29.97
Ratings (480) (329) (430) (215)
Power Source Battery Hardwired Battery Battery
Alarm Sensor Type Ionization Photoelectric Photoelectric Photoelectric
Alarm/Detector Features Hush Feature Battery Back-Up,Hush Feature,Interconnected 10-Year Battery,Hush Feature,Tamper Resistant 10-Year Battery,Hush Feature,Tamper Resistant,Voice Alert
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Specifications

Dimensions

Product Depth (in.)
4
Product Height (in.)
1.5
Product Width (in.)
4.0625

Details

Alarm Sensor Type
Ionization
Alarm Type
Smoke
Alarm/Detector Features
Hush Feature
Commercial / Residential
Commercial / Residential
Connector/Contact Type
None
Included
Batteries
Pack Size
1
Power Source
Battery
Returnable
90-Day
Voltage (volts)
9

Warranty / Certifications

Certifications and Listings
1-UL Listed

Specifications

Dimensions

Product Depth (in.)
4
Product Height (in.)
1.5
Product Width (in.)
4.0625

Details

Alarm Sensor Type
Ionization
Alarm Type
Smoke
Alarm/Detector Features
Hush Feature
Commercial / Residential
Commercial / Residential
Connector/Contact Type
None
Included
Batteries
Pack Size
1
Power Source
Battery
Returnable
90-Day
Voltage (volts)
9

Warranty / Certifications

Certifications and Listings
1-UL Listed

Questions & Answers

I am wanting to put smoke detectors in my Church and I need 26 of them and i was wondering if th...

I am wanting to put smoke detectors in my Church and I need 26 of them and i was wondering if the 6 pack smoke alarms could be purchased in multiple packs and still work together?
Asked by: bbcon
they all work independent of each other. If you want to tie them together so that they all sound when one senses smoke you will need 110vac hard wired smokes or a fire alarm system
Answered by: mud73dog
Date published: 2019-04-05

Are there a lot of false alarms for the explosive gas component of model KN-COEG-3?

Asked by: SuzyQ
My experience after 2 months of use is NO false alarms....I have located it in a small furnace room that contains both a natural gas furnace and natural gas water heater. As for placing it in the furnace room when the instructions say not to place in furnace rooms--It was my only common sense option in the raised ranch home.-----In any event if i had a gas leak and had placed the detector in an upstairs location or down stairs bedroom far from the furnace and incoming gas lines It may be tooooo late as the gas would never reach the detector in time.... Am I missing something by placing It in the furnace room for earliest possible detection of a gas leak? Agan,I have had NO false alarms and like the units, but you must take time and educate yourself thru the instructions.
Answered by: ROCK
Date published: 2019-01-03

Is this a smoke alarm and Carbon Monoxide detector?

Is this a smoke alarm and Carbon Monoxide detector? looking for the least expensive Carbon Monoxide detector, need 20 for my apartments
Asked by: Jackie
This alarm is only for smoke.
Answered by: Flash
Date published: 2019-03-05

Are these suppose to leak?

We had once alarm go off it beeped 3 times them shut off. When we came down stairs there was water every where and the smoke detector was leaking
Asked by: Maddi
mine is dry all the time, even for more than 10 years. I don't think there is water inside the unit
Answered by: TOM
Date published: 2019-03-05
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